Home / 6,864.60-9,473.16-3,720.72

Finding the Fourth Proportional to 6,864.60, 9,473.16 and 3,720.72

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Solution

The fourth proportional to 6,864.60, 9,473.16 and 3,720.72 is: 5,134.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,864.60 : 9,473.16 = 3,720.72 : x
  2. Step 2: Convert to fraction form
    6,864.60/9,473.16 = 3,720.72/x
  3. Step 3: Cross multiply
    6,864.60x = 9,473.16 × 3,720.72
  4. Step 4: Simplify right side
    6,864.60x = 35,246,975.88
  5. Step 5: Solve for x
    x = 35,246,975.88/6,864.60
  6. Step 6: Final answer
    x = 5,134.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.